This seems unrelated to https://github.com/firehol/firehol/issues/264
The paths to iptables et al. in /usr/lib/firehol/install.config are wrong. They should be /usr/sbin/ip{,6}tables{,-save,-restore}, but they are /sbin/ip{,6}tables{,-save,-restore}. After fixing the paths locally, it seems to work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891751 Title: firehol ubuntu 20.04 ERROR: Neither IPv4 nor IPv6 is available - exiting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firehol/+bug/1891751/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs